A type of music that combines elements of old-school rock and country, or belonging to the genre of early blues-enfused rock of the 50's. Today, its fans are by and large part of a subculture that idealizes the 50s. See psychobilly

I went to the dance hall and saw a bunch of greasers listening to rockabilly band.

An eclectic genre of music- a combination of rockabilly, horror punk, punk, goth rock, blues, and bluegrass- mixed with other elements as well. Psychos can be identified by their unnatural, perverse love of old b-rated horror films and their rocking sense of style.